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Proceedings Paper

Bleachable dichroic dye-doped nematics as materials for intra- and extracavity laser elements
Author(s): Svetlana V. Serak; Anatoliy A. Kovalev; Natalia Usova; Victor Yu. Reshetnyak; Vladimir A. Grozhik
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Paper Abstract

The paper presents the results of investigation of bleachable dichroic dye-doped liquid crystal (LC) cells operating as intra-cavity (passive shutter) and extra-cavity (wave-front conjugation mirror) laser elements. Regularities in the saturation of bleachable dichroic eye absorption in a LC have been established taking into account the order parameter. Control of monopulse parameters from free-running spiking mode to monopulse mode by changing the working temperature of the passive LC shutter or the layer director orientation has been achieved. It was shown that in case of wave-front conjugation of nanosecond pulses in LC's doped with bleachable dyes the thermal nonlinearity is considerably higher than the resonance nonlinearity in the range of temperatures close to the phase transition point ((delta) T degree(s)=3 degree(s)C), which results in higher total conjugation coefficient as compared with isotropic bleachable dyes solutions.

Paper Details

Date Published: 30 May 2001
PDF: 12 pages
Proc. SPIE 4418, Eighth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals, 44180N (30 May 2001); doi: 10.1117/12.428308
Show Author Affiliations
Svetlana V. Serak, Institute of Electronics (Belarus)
Anatoliy A. Kovalev, Institute of Electronics (Belarus)
Natalia Usova, Institute of Electronics (Belarus)
Victor Yu. Reshetnyak, National Taras Shevchenko Univ. of Kyiv (Ukraine)
Vladimir A. Grozhik, Institute of General and Inorganic Chemistry (Belarus)


Published in SPIE Proceedings Vol. 4418:
Eighth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals

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